Flexible closure



May 25 192s. 1,585,645

R. H. BINNS FLEXIBLE CLOSURE Filed March 5. 1925 @a/Mm 2f Patented May 25, 1926. p

UNITED STATES" I l 1,585,645A

PATENT; oFFicE. 1

RALPH E. BINNS, F YITTSBURGH, PENNSYLYAIA, ASSIGNOR 0F ONE-HALF T0 i EDWARD H. BINNS, O F PITTSIBU'RfGrH,I IEIllll'NSYLVAN'IA.`

rLExnaLn cnosunn.

Application meu ual-on' 5, 1925. semina. 1eme.

The present invention relates to an improved. pull member for cam sliders of the type employed withv flexible strips or stringers of spaced interlocking fastening devices. The present invention consists of a combined pull member and drag or brake lock. The improved member is swiveled for lateral movement and hinged for a limited vertical movement upon the slider. A latch is arranged between the pull member and slider for securing it in closed position and the side edges of the pull member arebrake raised slightly in position for a down-` ward pull upon the slider;

Fig. 4 is a transverse sectional on the line 4 4 of Fig. 1; y

Fig.- 5 is a view similar to Fig. 1 with the pull member reversed and extended upwardly for an upward or closing pull upon the slider;

Fig.l 6 is a side elevation of the same; Fi 7 is a detail transverse sectionalview view taken l.showlng the,combined hinge and swivel connettion of the pullmember with the slider; an

Fig. 8 is a view similar to Fig, 2 showing a slightmodification.

In the type of flexible closure to which the presentinvention relates, two iex1ble strips or stringere 1, 2 are formed attheir p vinner edges with beads vor thickened yportions 3 upon which a-re'secured interlocking fastemng devices.

, Eaclf interlocking lizlas'tening device is preferably formed with a U-sha'ped yoke 10 embracing and compressed upon the beaded Vor Ithickened edge 3 of a flexible Stringer, a narrow neck 12, a forked hook 13, and the opposite ridinglugs or shoulders 15. vThe specific form and operation of the fastening devices of the preferred construction will be more fully understood by reference to the patent of Binns, Binns and De Hart, N o. 1,553,499, dated September th, 1925.

The operating cam slider 'is preferably constructed as set forth in the above named patent of a back-plate and va fore-plate 21 mounted in spaced relation upon a binder post 22. The inner faces of the backplate and fore-plate'are provided with controlling grooves separated by a central guide rib 26. The riding lugs 15 of the fastening devices operate in the controlling grooves 25.

is a swivel pin mounted to turn freely in the binder post 22 and formed at its outer end with a transversely perforated head 31. 35 is a pull member formed at one end with the separated bearing eyes 36, which are presented upon opposite sides of the swiveled head 31 and are hinged thereto by a transverse pivot pin 37. A centrally curved arm 38 projects from pull member over the swivel head 31 in position to en? gage the outer face of fore-plate 21vto limit the outward movement of pull member 35 and aii'ord a fulcrum engagement with the slider to control the angularposition of the slider upon the interlocking fastenin devices. Thev combined swivel v nd lgringe joint between pull member 35 an the slider is in eiect a universal joint connectionbetween these parts.

The end of the pull member 35opposte its hinge connection with the swivel pin is recessed at 40 to receive a spring snap 41 projecting outwardly from the fore-plate 21 at its lower edge. This vspring snap 41 latches the pull member in closed posltion aginst the face of fore-plate 21 of the sl1 er.

Pull member 35 is preferably .formedA with inwardly presented ISide walls or ianges 45 that tre shaped to fit over the side edges of the slider and frictionally engage the exposed outer faces of the inter-.locked -fastening devices just outside the side walls of the slider. The, drag or braking edges of these sidewalls 45 may be roughened as indicated in Fig. 3 to afford effective frictional engagement with the fastening devices, or these side walls may be definitely notched as shown at 50 in Fig. 8 to actually fit over the exposed yoke ends of the fastening. devices and more positively lock the slider against movement. In thisl modified form shown in Fig. 8, it will be observed that the Vprojections 50 are of proper size and shape to substantially occupy the spaces between adjacent fastening devices.

It will also be observed that the present invention provides a combined ull member and drag or brake for locking t e slider upon two series of interlocked fastening devices. Referring to Fig. 3, it will be understood that to move the slider downwardl for unlocking the fastening devices, a pnl in the direction of arrow m While exerting slight outward pressure in the direction of arrow y will effectively .mo-ve the shder downwardly over the locking devices with the least resistance. For interlocking the fastening devices, the pulll member 35 is moved from the position shown in Fig. 3 into reversedv position asshown 1n Figs. 5 and 6, the swivel connection with the 'slider rmitting this reversal. An upward pul in the directionl of arrow w and shght outward pressure in the direction of arrow y',

will move the slider upwardly "to cause the interlocking of the fastening devices. In both .these unlocking' and locking movements, it will be understood that theengagement of the arm 38 with the outer -face of the slider will give an effective leverage control of the angularposition of the slider u i1 the fastening devices to prevent digging in or improper interference between the arts. P While the yfulcrum member 38 is shown projectin centrallyv from the hinge of the pull mem r 35, it is obvious that the same result can be accomplishedy by lforming, a

suitable heel or projection from any part of .the hinge of the pull member to limit the outward movement of the pull member upon the slider and afford the leverage control ofv the slider when it is operated. s

The provision of the universal joint connection of the pull member with the slider, whereby the hinged end of the pull member swivels 'or rotates laterally upon the slider is so arranged that the hinged-end'of the pull member will not project beyond the sidesof the slider, so that there Vwill be no chance of interference or engagement with the stringers or material to which the stringers Vare attached.

I claim l 1. In a flexible closure or fastener, the combination of fiexible strips or stringers having spaced interlocking fastening dev1 ces, and an operating slider embracing and sliding upon said fastening devices, with a combined pull member and drag or brake having universal joint connection with said slider.

2. In a fiexible closure or fastener, the combination of flexible strips or stringers having spaced interlocking fastening devices, and an operating slider embracing and sliding upon said fastening devices, with a pull member pivotallyvmounted upon said slider and formed with side fianges arranged to project over the slider sides and engage said fastening devices.

3. In a flexible closure or fastener, the combination with flexible strips or stringers having 'spaced interlocking fastening devices, an `an operating slider embracin and sliding upon said'fastening devices, wit a pull member pivotall mounted upon said slider and formed wit side flanges which project over the edges of the slider in osition to frictionally engage the exposed aces of the fastening devices to constitute a drag or brake lock.

4. In a. flexible closure or fastener, the 'combination with flexible strips or stringers having' spaced interlocking fastening devices, and an operating slider embracing and having spaced interlocking fastening \de vices, and an operating slider embracing and sliding upon said fastening devices, with a swivel pin mounted in said slider, and a pull member hinged to said swivel pin.

6. In .a liexible closure or fastener, the combination with flexible strips or stringers having spaced interlocking fastening devices, and an operating slider embracing and sliding upon said fastening devices, with a swivel pin mounted'in said slider, and a pull member having a limited hinged connection with said swivel pin to provide for freel lateral movements of the pull member into positions above and below said pin and for limited movements toward and away from said slider.

v 7. In a fleirible'closure or fastener, the. combination with flexible strips or with a.v

hinged connection with said slider, and a fulcrum arm projecting from said hinge in position to engage the face of the slider for limiting the hinge movement of the pull l member and affording leverage control of the angular position of the slider.

8. In a flexible closure or fastener, the

combination with flexible strips 'or stringers having spaced interlocking fastening devices, and an operating slider embracing and sliding upon said fastening devices, with a pull member reversibly swivelled upon said slider and formed with a fulcrum arm projecting from the swivel in position to engage the face of the slider.

RALPH H. BINNS. 

